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1 // Copyright 2015 The Go Authors. All rights reserved.
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2 // Use of this source code is governed by a BSD-style
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3 // license that can be found in the LICENSE file.
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4
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5 // +build gccgo
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6 // +build !aix
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7
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8 #include <errno.h>
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9 #include <stdint.h>
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10 #include <unistd.h>
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11
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12 #define _STRINGIFY2_(x) #x
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13 #define _STRINGIFY_(x) _STRINGIFY2_(x)
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14 #define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)
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15
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16 // Call syscall from C code because the gccgo support for calling from
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17 // Go to C does not support varargs functions.
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18
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19 struct ret {
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20 uintptr_t r;
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21 uintptr_t err;
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22 };
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23
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24 struct ret gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
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25 __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscall");
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26
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27 struct ret
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28 gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
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29 {
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30 struct ret r;
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31
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32 errno = 0;
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33 r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
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34 r.err = errno;
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35 return r;
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36 }
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37
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38 uintptr_t gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
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39 __asm__(GOSYM_PREFIX GOPKGPATH ".realSyscallNoError");
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40
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41 uintptr_t
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42 gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
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43 {
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44 return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
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45 }
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